She lives on welfare in a trailer park and has three kids with three different fathers, one of which is related to her.
Don't wait for more than 30 minutes after the supposed beginning of the date. Anything more, and you're just encouraging someone who is game-playing instead of wanting something more.
Call her cell at 20 minutes if you wish. Sooner, and once again you're encouraging a game-player by seeming desparate.